Gas Chromatography—Electron Ionization—Mass Spectrometry Analysis of O,O ′-Dialkyl Methylphosphonites for Verification Analysis of the Chemical Weapons Convention
Restricted accessResearch articleFirst published online February, 2011
Gas Chromatography—Electron Ionization—Mass Spectrometry Analysis of O,O ′-Dialkyl Methylphosphonites for Verification Analysis of the Chemical Weapons Convention
Gas chromatography–mass spectrometry (GC-MS) analysis of O,O′-dialkyl methylphosphonites (DAMPs) was carried out with a view to developing a database and understanding the mechanism of fragmentation. DAMPs are included in the list of schedule 2B4 chemicals of the Chemical Weapons Convention. GC-MS analysis of DAMPs and their deuterated analogs revealed that their fragmentations were dominated by α-cleavages, alkenyl radical loss and hydrogen rearrangements. Based on fragment ions of deuterated analogs and density functional theory calculations, the fragmentation routes were rationalized.
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